You know, they also sell wheat in cans. If you can find an organic wheat and get a hand held grist mill (I think that's what they're called), you can grind your own wheat into flour.
Mother Earth magazine had a huge article on that one time but it's been so long since I read it, I don't remember everything that was in it. It just came back to mind a couple years back when I was volunteering at a food bank and they got in a couple pounds of wheat to give out.
I cook because my pots and pans are the closest thing to a chemistry experiment that I have. So far I haven't blown up the kitchen!